Movable climbing ladder fixing device and movable climbing ladder

Abstract

The utility model relates to the technical field of climb ladders, and discloses a mobile climb ladder fixing device and a mobile climb ladder, the mobile climb ladder fixing device is used for being assembled on the mobile climb ladder, the mobile climb ladder fixing device specifically comprises a connecting seat and a supporting leg, the connecting seat takes the height direction of the mobile climb ladder as a rotating shaft, and is rotatably connected to the side part of the mobile climb ladder; the movable climbing ladder has an unfolding position and a folding position relative to the movable climbing ladder, and the supporting legs are movably connected to the connecting seats and have working positions and folding positions, so that the movable climbing ladder is convenient to move and is suitable for different situations. The utility model further provides the movable climbing ladder which comprises the movable climbing ladder fixing device, so that the movable climbing ladder is convenient to fix, the stability is improved, the safety is higher, the space is saved, and the use flexibility is better.

Description

Technical Field

[0001] The utility model relates to the technical field of climbing ladders, in particular to a fixing device for a mobile climbing ladder and a mobile climbing ladder. Background Art

[0002] A climbing ladder usually consists of two main parts, namely a bracket and a ladder, and is widely used in scenarios such as shopping malls, libraries, large machinery factories, warehouses, etc., facilitating operators to perform high-altitude operations. In order to make the climbing ladder easy to move to a designated area for operation, a mobile climbing ladder is set. Generally, pulleys are arranged at the bottom end of the mobile climbing ladder, which is convenient for movement, improves work efficiency, and avoids waste of manpower. However, when an operator stands on the mobile climbing ladder to work, the pulleys are not easy to be completely fixed, and the safety is relatively low. When the ground of the use scenario is uneven or there is a slope, the mobile climbing ladder will also slide by itself, posing a safety hazard to the operator. In the prior art, in order to solve the problem of the self-sliding of the mobile climbing ladder, it is adjusted by fixing a telescopic rod or a fixed support seat to keep the mobile climbing ladder fixed. However, this fixing device is located on both sides of the mobile climbing ladder and can only be fixed by telescoping up and down, having problems of high requirements for the use space and inconvenience in changing different use situations.

[0003] Therefore, there is an urgent need to provide a fixing device for a mobile climbing ladder and a mobile climbing ladder to solve the above problems. Summary of the Utility Model

[0004] Based on the above, the purpose of the utility model is to provide a fixing device for a mobile climbing ladder and a mobile climbing ladder, which have better fixing effect and higher safety for the mobile climbing ladder, while saving space and having better use flexibility.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A fixing device for a mobile climbing ladder, which is used for being assembled on the mobile climbing ladder. The fixing device for the mobile climbing ladder includes:

[0007] A connecting seat, which is rotationally connected to the side part of the mobile climbing ladder with the height direction of the mobile climbing ladder as the rotation axis. The connecting seat has an unfolded position and a folded position relative to the mobile climbing ladder. When the connecting seat is in the unfolded position, the short side of the connecting seat fits against the side part of the mobile climbing ladder. When the connecting seat is in the folded position, the long side of the connecting seat fits against the side part of the mobile climbing ladder;

[0008] A supporting leg, which is movably connected to the connecting seat. The supporting leg has a working position and a retracted position. When the supporting leg is in the working position, the supporting leg supports on the ground. When the supporting leg is in the retracted position, the supporting leg is away from the ground.

[0009] As a preferred solution of a mobile access ladder fixing device, the mobile access ladder fixing device includes a first limiting member, and the first limiting member is detachably and limitably connected to the connecting seat and the side of the mobile access ladder, and can limit the connecting seat at the unfolded position.

[0010] As a preferred solution of a mobile access ladder fixing device, the first limiting member includes a first pin seat and a first U-shaped pin. At least one of the first pin seats is provided on the side of the mobile access ladder and the connecting seat, and each first U-shaped pin is detachably inserted into one of the first pin seats on the side of the mobile access ladder and one of the first pin seats on the connecting seat at the same time.

[0011] As a preferred solution of a mobile access ladder fixing device, the mobile access ladder fixing device includes a second limiting member, and the second limiting member is detachably and limitably connected to the connecting seat and the side of the mobile access ladder, and can limit the connecting seat at the folded position.

[0012] As a preferred solution of a mobile access ladder fixing device, the second limiting member includes a second pin seat and a second U-shaped pin. At least one of the second pin seats is provided on the side of the mobile access ladder and the connecting seat, and each second U-shaped pin is detachably inserted into one of the second pin seats on the side of the mobile access ladder and one of the second pin seats on the connecting seat at the same time.

[0013] As a preferred solution of a mobile access ladder fixing device, the support leg includes a screw rod and a screw nut. The screw nut is fixed on the connecting seat, and the screw rod extends along the height direction of the mobile access ladder and is threadedly connected to the screw nut to switch between the working position and the retracted position.

[0014] As a preferred solution of a mobile access ladder fixing device, the support leg includes a telescopic leg. The telescopic leg extends along the height direction of the mobile access ladder, and the length of the telescopic leg is adjustable to switch between the working position and the retracted position.

[0015] As a preferred solution of a mobile access ladder fixing device, the support leg includes a folding leg. The folding leg is rotatably connected to the connecting seat to be rotated and switched to the working position or the retracted position.

[0016] A mobile access ladder includes the mobile access ladder fixing device according to any one of the above.

[0017] As a preferred solution of a mobile access ladder, a plurality of the mobile access ladder fixing devices are provided, and at least one of the mobile access ladder fixing devices is provided on each of the opposite sides of the mobile access ladder.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The present utility model provides a mobile access ladder fixing device, which is used for being assembled on a mobile access ladder and specifically includes a connecting seat and a supporting leg. The connecting seat is rotatably connected to the side of the mobile access ladder, and the supporting leg is movably connected to the connecting seat. When the mobile access ladder needs to be fixed, the connecting seat is located at the unfolded position, and at the same time, the supporting leg is located at the working position, which is convenient for the overall fixing of the mobile access ladder. And by the short side of the connecting seat being attached to the side of the mobile access ladder, the mobile access ladder equipped with the fixing device has a wider width in the width direction and is more stable. When the mobile access ladder does not need to be fixed, the connecting seat is located at the folded position, and at the same time, the supporting leg is located at the retracted position, which is convenient for the movement of the mobile access ladder, suitable for different situations. And by the long side of the connecting seat being attached to the side of the mobile access ladder, the mobile access ladder equipped with the fixing device occupies less space in the width direction, avoiding interference with external objects when moving the mobile access ladder and being more easily passed through narrow channels.

[0020] The present utility model also provides a mobile access ladder, which includes a mobile access ladder fixing device, facilitating the fixing of the mobile access ladder, being more stable and safer while improving the stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0022] Figure 1 is the front view of the mobile access ladder provided by the embodiment of the present utility model;

[0023] Figure 2 is the side view of the mobile access ladder provided by the embodiment of the present utility model (the mobile access ladder fixing device is not shown in the figure);

[0024] Figure 3 is a usage situation of the top view of the mobile access ladder provided by the embodiment of the present utility model;

[0025] Figure 4 is another usage situation of the top view of the mobile access ladder provided by the embodiment of the present utility model;

[0026] In the figure:

[0027] 1. Connecting seat;

[0028] 2. Supporting leg; 21. Screw rod; 22. Screw nut;

[0029] 3. First limiting member;

[0030] 4. Second limiting member. Specific embodiments

[0031] The following further describes the present utility model in detail with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] As shown Figures 1 to 4 in the figure, this embodiment provides a fixing device for a mobile access ladder, which is used to be assembled on the mobile access ladder. The fixing device for the mobile access ladder includes a connecting seat 1 and a supporting leg 2. Taking the height direction of the mobile access ladder as the rotation axis, the connecting seat 1 is rotatably connected to the side of the mobile access ladder. The connecting seat 1 has an unfolded position and a folded position relative to the mobile access ladder. When the connecting seat 1 is in the unfolded position, the short side of the connecting seat 1 is attached to the side of the mobile access ladder. When the connecting seat 1 is in the folded position, the long side of the connecting seat 1 is attached to the side of the mobile access ladder; The supporting leg 2 is movably connected to the connecting seat 1. The supporting leg 2 has a working position and a retracted position. When the supporting leg 2 is in the working position, the supporting leg 2 supports on the ground. When the supporting leg 2 is in the retracted position, the supporting leg 2 is away from the ground. When the mobile access ladder needs to be fixed, as Figure 3 shown in the figure, the connecting seat 1 is placed in the unfolded position, and at the same time the supporting leg 2 is placed in the working position, which is convenient for the overall fixing of the mobile access ladder. And by attaching the short side of the connecting seat 1 to the side of the mobile access ladder, the mobile access ladder equipped with the fixing device has a wider width in the width direction and is more stable; When the mobile access ladder does not need to be fixed, as Figure 4 shown in the figure, the connecting seat 1 is placed in the folded position, and at the same time the supporting leg 2 is placed in the retracted position, which is convenient for the movement of the mobile access ladder, suitable for different situations. And by attaching the long side of the connecting seat 1 to the side of the mobile access ladder, the mobile access ladder equipped with the fixing device occupies less space in the width direction, avoiding interference with external objects when moving the mobile access ladder and making it easier to pass through narrow channels. Among them, a connecting shaft is provided on one side of the mobile access ladder close to the connecting seat 1. A connecting shaft sleeve is sleeved outside the connecting shaft, and the connecting shaft sleeve is fixedly connected to the connecting seat 1. Through the relative rotation of the connecting shaft and the connecting shaft sleeve, the connecting seat 1 is rotated to the unfolded position or the folded position.

[0036] Furthermore, the fixing device for the mobile access ladder includes a first limiting member 3. The first limiting member 3 is detachably and limit-connected to the connecting seat 1 and the side of the mobile access ladder, and can limit the connecting seat 1 in the unfolded position. When using the mobile access ladder, the connecting seat 1 is rotated to the unfolded position, and then the first limiting member 3 is used to limit-connect the connecting seat 1 and the side of the mobile access ladder, so that the connecting seat 1 and the side of the mobile access ladder are relatively fixed, avoiding displacement of the connecting seat 1 and causing shaking of the mobile access ladder, improving the stability of the mobile access ladder during use and thus enhancing safety; After use, the first limiting member 3 releases the limit on the connecting seat 1 or the side of the mobile access ladder, so that the connecting seat 1 can be rotated to the folded position.

[0037] In one embodiment, the first limiting member 3 includes a first pin seat and a first U-shaped pin. A pin seat is provided on both the side of the mobile access ladder and the connecting seat 1. When the connecting seat 1 rotates to the unfolded position, the two ends of the U-shaped opening of the U-shaped pin are respectively inserted into the pin seats on the side of the mobile access ladder and the connecting seat 1 to fix the connecting seat 1, so that the connecting seat 1 remains in the unfolded position and is not easily moved, thereby improving the stability of the mobile access ladder. Of course, in other embodiments, multiple first limiting members 3 may be provided, that is, multiple first pin seats may be provided on the side of the mobile access ladder and the connecting seat 1 respectively, such as 2, 3, or 4, etc. Correspondingly, multiple first U-shaped pins are also provided, such as 2, 3, or 4 first U-shaped pins, etc., which are specifically determined according to the actual situation.

[0038] In another embodiment, the first limiting member 3 further includes a first fixing ring and a first hook. The first fixing ring is provided on the side of the mobile access ladder close to the connecting seat 1. One end of the first hook is rotatably connected to the connecting seat 1, and the other end can be lapped in the first fixing ring to limit the connecting seat 1 in the unfolded position. When using the mobile access ladder, the connecting seat 1 rotates to the unfolded position, and then by rotating the first hook, the hook part of the first hook is lapped in the first fixing ring, so that the connecting seat 1 and the side of the mobile access ladder are relatively fixed, improving the stability when using the mobile access ladder and thus enhancing safety; when the use is completed, the first hook is removed, so that the connecting seat 1 can rotate to the folded position.

[0039] Furthermore, the mobile access ladder fixing device further includes a second limiting member 4. The second limiting member 4 is detachably and limit-connected to the connecting seat 1 and the side of the mobile access ladder, and can limit the connecting seat in the folded position. When moving the mobile access ladder, the connecting seat 1 rotates to the folded position, and then the second limiting member 4 is used to limit-connect to the connecting seat 1 and the side of the mobile access ladder, which is convenient for moving the mobile access ladder, suitable for different situations, and improves work efficiency; when the movement is completed, the second limiting member 4 releases the limit on the connecting seat 1 or the side of the mobile access ladder, so that the connecting seat 1 can rotate to the unfolded position.

[0040] In one embodiment, the second limiting member 4 includes a second socket and a second U-shaped pin. A socket is provided on both the side of the mobile access ladder and the connecting seat 1. When the connecting seat 1 rotates to the folded position, the two ends of the U-shaped opening of the U-shaped pin are respectively inserted into the sockets on the side of the mobile access ladder and the connecting seat 1 to fix the connecting seat 1, keeping the connecting seat 1 in the folded position and not easily moving, which is convenient for the movement of the mobile access ladder. Of course, in other embodiments, multiple second limiting members 4 may be provided, that is, multiple second sockets may be provided on both the side of the mobile access ladder and the connecting seat 1 respectively, such as 2, 3 or 4, etc., and the corresponding second U-shaped pins are also provided in multiple numbers, such as 2, 3 or 4, etc., which are specifically determined according to the actual situation.

[0041] In another embodiment, the second limiting member 4 further includes a first fixing ring and a second hook. The second fixing ring is provided on the side of the mobile access ladder close to the connecting seat 1. One end of the second hook is rotatably connected to the connecting seat 1, and the other end can be lapped in the second fixing ring to limit the connecting seat 1 in the folded position. When moving the mobile access ladder, the connecting seat 1 rotates to the folded position, and then by rotating the second hook, the hook part of the second hook is lapped in the second fixing ring, so that the connecting seat 1 and the side of the mobile access ladder are relatively fixed, which is convenient for the movement of the mobile access ladder and applicable to different situations; after the movement is completed, the second hook is removed, so that the connecting seat 1 can rotate to the unfolded position.

[0042] Furthermore, the supporting leg 2 includes a screw rod 21 and a screw nut 22. The screw nut 22 is fixed on the connecting seat 1. The screw rod 21 extends along the height direction of the mobile access ladder and is threadedly connected to the screw nut 22 to switch between the working position and the retracted position. Threads are provided on both the outer wall of the threaded screw rod 21 and the inner wall of the screw nut 22. By relatively rotating the screw rod 21 and the screw nut 22 in threads, the up and down telescoping of the supporting leg 2 is realized, so that the supporting leg 2 is located in the working position or the retracted position. The length of the supporting leg 2 can be adjusted arbitrarily. When the supporting leg 2 is adjusted by rotation to support on the ground, the supporting leg 2 is in the working position. When the supporting leg 2 is adjusted by rotation to be away from the ground, the supporting leg 2 is in the retracted position, which is applicable to different usage situations.

[0043] Preferably, the supporting leg 2 further includes a support. The support is provided at the lower end of the screw rod 21 and is used to support on the ground in the working position. The setting of the support can ensure that the supporting leg 2 has a sufficient contact area with the ground and further improve the supporting stability.

[0044] More preferably, the support leg 2 further includes a driving handle which is drivingly connected to one end of the screw rod 21 away from the support. By rotating the driving handle, the screw rod 21 is driven to rotate, so that the support moves away from or contacts the ground. The driving handle facilitates manual operation and improves the operation convenience. Of course, in other embodiments, the screw rod 21 can be driven by an electric motor to realize the rotation of the screw rod 21 by electric drive, which is convenient and fast.

[0045] In another embodiment, the support leg 2 includes a telescopic leg which extends along the height direction of the mobile access ladder, and the length of the telescopic leg is adjustable to switch between the working position and the retracted position. The telescopic leg can be, but is not limited to, an electric telescopic rod. Exemplarily, the telescopic leg includes a first support rod and a second support rod, and the first support rod and the second support rod can telescopically move relative to each other. Exemplarily, the first support rod 2 and the second support rod 2 are sleeved with threads, and by relatively rotating the first support rod 2 and the second support rod 2, the length of the support leg 2 can be adjusted to be in the working position or the retracted position. When the support leg 2 is adjusted to support on the ground through telescoping, the support leg 2 is in the working position, and when the support leg 2 is adjusted to be away from the ground through telescoping, the support leg 2 is in the retracted position, which is applicable to different usage situations. Of course, in other embodiments, the telescopic leg can also include a plurality of support rods which are telescopically arranged with each other, such as 3 or 4 support rods.

[0046] Preferably, a support is arranged at the lower end of the telescopic leg for supporting on the ground in the working position. The arrangement of the support can ensure that the support leg has a sufficient contact area with the ground and further improve the support stability.

[0047] In yet another embodiment, the support leg 2 includes a folding leg which is rotatably connected to the connecting seat 1 to rotate and switch to the working position or the retracted position. A compression spring is connected between the folding leg and the connecting seat 1 or the folding leg is rotatably connected to the connecting seat 1 through a torsion spring, so that the folding leg has a tendency to rotate to the working position; when the folding leg is forced to rotate to the retracted position, it is limit-connected to the connecting seat 1 through a third limiting member. Exemplarily, the third limiting member is a bolt which is threadedly connected to the connecting seat and the folding leg, or the structure of the third limiting member is the same as that of the second limiting member. For the specific structure, refer to the above-mentioned second limiting member and will not be elaborated here.

[0048] This embodiment provides a mobile access ladder, including a mobile access ladder fixing device, which facilitates the fixing of the mobile access ladder and is more secure while improving the stability.

[0049] Specifically, a plurality of mobile access ladder fixing devices are provided, and at least one mobile access ladder fixing device is provided on each of the opposite sides of the mobile access ladder. Exemplarily, when two mobile access ladder fixing devices are provided on each of the opposite sides of the mobile access ladder, the two mobile access ladder fixing devices on the same side are oppositely installed at positions near the top of the side of the mobile access ladder, and the stability is better; of course, in other embodiments, one or three or four or more mobile access ladder fixing devices are provided on each of the opposite sides of the mobile access ladder to increase the stability of the mobile access ladder.

[0050] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A mobile climbing ladder fixing device, used for assembly on a mobile climbing ladder, characterized in that: The mobile climbing ladder fixing device comprises: A connecting seat, with the height direction of the mobile climbing ladder as the rotation axis, is rotatably connected to the side of the mobile climbing ladder, and the connecting seat has an unfolded position and a folded position relative to the mobile climbing ladder. When the connecting seat is in the unfolded position, the short side of the connecting seat is in contact with the side of the mobile climbing ladder, and when the connecting seat is in the folded position, the long side of the connecting seat is in contact with the side of the mobile climbing ladder; A support leg is movably connected to the connecting seat, and the support leg has a working position and a stowed position. When the support leg is in the working position, the support leg is supported on the ground. When the support leg is in the stowed position, the support leg is away from the ground.

2. The mobile climbing ladder fixing device according to claim 1, characterized in that: The mobile climbing ladder fixing device also includes a first limiting member, which is detachably limitatively connected to the connecting seat and the side of the mobile climbing ladder, and can limit the connecting seat to the unfolded position.

3. The mobile climbing ladder fixing device according to claim 2, characterized in that: The first limiting member includes a first latch seat and a first U-shaped latch. The side of the mobile climbing ladder and the connecting seat are each provided with at least one of the first latch seats. Each of the first U-shaped latches is detachable and simultaneously plugged into a first latch seat on the side of the mobile climbing ladder and a first latch seat on the connecting seat.

4. The mobile climbing ladder fixing device according to claim 1, characterized in that: The mobile climbing ladder fixing device also includes a second limiting member, which is detachably limitatively connected to the connecting seat and the side of the mobile climbing ladder, and can limit the connecting seat to the folded position.

5. The mobile climbing ladder fixing device according to claim 4, characterized in that: The second limiting member includes a second latch seat and a second U-shaped latch. The side of the mobile climbing ladder and the connecting seat are each provided with at least one second latch seat. Each second U-shaped latch is detachable and simultaneously plugged into a second latch seat on the side of the mobile climbing ladder and a second latch seat on the connecting seat.

6. The mobile climbing ladder fixing device according to claim 1, characterized in that: The supporting leg includes a spiral screw and a screw nut, the screw nut is fixed on the connecting seat, the spiral screw is extended along the height direction of the mobile ladder, and is threadedly connected to the screw nut to switch between the working position and the stowed position.

7. The mobile climbing ladder fixing device according to claim 1, characterized in that: The supporting legs include telescopic legs, which are extended along the height direction of the mobile climbing ladder, and the length of the telescopic legs is adjustable so as to switch between the working position and the stowed position.

8. The mobile climbing ladder fixing device according to claim 1, characterized in that: The supporting legs include folding legs, and the folding legs are rotatably connected to the connecting seat so as to be rotatably switched to the working position or the stowed position.

9. A mobile climbing ladder, characterized in that: The invention comprises a fixing device for a mobile climbing ladder as described in any one of claims 1 to 8.

10. The mobile climbing ladder according to claim 9, characterized in that: There are a plurality of the mobile climbing ladder fixing devices, and at least one of the mobile climbing ladder fixing devices is respectively arranged on two opposite sides of the mobile climbing ladder.

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